Th l R i ti it f S il Thermal Resistivity of Soils and Engineered Materials
Th l R i ti it f S il Thermal Resistivity of Soils and Engineered Materials
Th l R i ti it f S il Thermal Resistivity of Soils and Engineered Materials
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Temperature Dependence <strong>of</strong><br />
<strong>Th</strong>ermal Resis<strong>ti</strong>v<strong>it</strong>y<br />
C/W)<br />
<strong>Th</strong>ermal Res sis<strong>ti</strong>v<strong>it</strong>y (cm<br />
600<br />
500<br />
400<br />
300<br />
200<br />
100<br />
0<br />
25 C<br />
65 C<br />
0 0.2 0.4 0.6<br />
Water Content (m3/m3)<br />
U. S. Electrical Code<br />
90 C Average so<strong>il</strong> 90<br />
Concrete 55<br />
Damp so<strong>il</strong> 60<br />
Very dry so<strong>il</strong> 120
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